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(Application filed Dec. 8, 1897.)

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DANIEL S. BIRRELL, OF WVARRINGTON, ENGLAND.

LOOM FOR WEAVING WIRE.

SPECIFICATION forming part of Letters Patent N 0. 611,602, dated October 4, 18898. Application filed December 8, 1897. terial No. 661,179. (No model.) Patented in England April 18, 1896, No. 8,172.

To all whom it may concern.-

Be it known that I, DANIEL STEWART BIR- RELL, engineer, a subject of the Queen of Great Britain-and Ireland, residing at Warrington, in the county of Lancaster, England, have invented certain new and useful Improvements in Looms for W'eaving Wire, of which the following is a specification.

This invention has been patented in England under dateof April 18, 1896, No. 8,172.

This invention has reference more particularly to looms for Weaving wire fabrics composed of warps and wefts, and relates more especially to that type of such looms in which the shuttle connecting the weft is moved from side to side mechanically--that is to say, by means other than hand; and it has more particularly for its object to provide improvements in such machines by which by a single mechanical means the different operations connected with the movement of the shuttle can be effectively performed and a high rate of movement and number of picks and a large production or manufacture of material is produced in a given time.

The invention will now be described with reference to the accompanying drawings, in which-- Figure 1 is a plan of loom according to this invention. Fig. 2 is an end elevation, and Fig. 3 is a front elevation. Figs. 4 and 5 show a shuttle to be used in connectionwith the loom.

Referring to the drawings, at is one of the shuttle-actuating rods, which is carried in a slipper a, adapted to slide to and fro upon a slide Z), fixed upon a bracket on the main frame a of the loom. At the other side of the machine a similar shuttle-actuating rod, slipper, and slide will be provided; but both of these mechanisms are worked by the single actuating mechanism shown and hereinafter described. These shuttle-actuating rods are driven by a cam 01, the rod a shown being operated by this cam, through the slide-bar e, carrying the rollers e (which are acted upon by the cam) and supported in guides 6*, rod e a rocking lever and shaft 6 connecting rod 6 and a lever 6 fulcrumed at its lower end in a ball-socket joint and connected at its upper end to the slipper a by a link a, the connection of e to the slipper being by a similar to e and so throu h another similar slipper and slide, the shuttle-rod at that side of the. frame.

The shuttle is supported at each side of the loom when it reaches the end of its throw or stroke upona table or bed g, fixed upon the frames 0, and the slay h, which carries the reed and by which the beating up of the weft is effected, extends across the machine and is carried on slippers h which slide to and fro on the inclined slides 71, motion being given to the slippers h? from the shaft h (having one revolution for each picking movement and driven from a suitable part of the machine,) cranks 71 on shaft 77. and connecting rods k connected to the slippers 773.

The cycle of movements of the pickingmotion parts are, first, a forward motion of the rod across the shed and a backward motion of it, this being effected by one complete revolution of the cam d. Then there is a pause of the rods afor about an equal period of time, in which the beating-up motion or action is effected. The third is the outward and return movement of the shuttle-rod at the other side of the loom similar to the former,and following it is another pause equal to the former, during which the beating-up action takes place as before. This completes the cycle of actions as regards the shuttles performances, both the two actions of the shuttle-picking-motion rods a at both sides of the loom and the pauses being produced or effected by the one cam 61 and mechanism de scribed, the cam d itself in the cycle performing four complete revolutions. The mechby the bevel-wheels j, (which are dfiven by the driving-gearing of the loom,) wheel j on shaft Z having a spline connection therewith. The shaft ihas also longitudinal movement, and this is effected by the cam 70, which is fixed on the shaft and driven by the driving-gear of the loom. The longitudinal movement is imparted to the shaft 2' by the cam 70 through slide-bars 70 carrying rollers 70 (operated upon by the cam) and suitably guided at each end, the bars 76 being connected to shaft 71 through a collar 70 thereon, which fits over the neck 2" of the shaft 1 The relative rates of revolution of the cams.

d and 7c are four to one, and the number of actual movements effected by the cam 70 is four, while the number of separate parts and functions of the cam is eight. In the position shown in the drawings the rotation of the cam is inoperative upon its bars 70 and the shaft 1', holding the shaft in this position while the cam cZ makes one complete revolution. Then the cam 70 presses the shaft tinward, bringing the cam (Z to a position intermediate the operative rollers e and f of the picking-motion slides e and f, respectively. Then the cam 70 in the next part of its revolution ceases to act upon the shaft i and retains it in this position while the cam (Z makes an idle revolution, during which time the beating-up motion is actuated through the cranks 72. and connecting-rods 7Z6. After this the cam 7:; imparts to the slide-bars k and shafti further movement in the same direction and brings it into the space between the rollers f of the cam-slide barf, and when in this position it holds the shaft 1' and cam cZ while the latter is making another complete revolution, in which revolution it operates the picking motion at the other side of the loom. After this the cam 70 presses the cam cZ out of engagement with rollers f into a position again intermediate 6 and f" and holds it in this position while it makes another idle revolution, during which time the beating up of the pick last made is effected, and after this the cam it moves the cam d again into position within the cam-rollers 6, so completing the cycle of operations. Thus the cam 70 gives four positive lateral movements to the shaft 2' and cam (Z and also gives four pauses in respect of the longitudinal movements of the cam d. To give these four several pauses, the cam It has, as will be seen in Fig. 2, four parts, the peripheries of which are parts of a circle having at their center the axis of the shaft 70. One of these pause parts is comparatively close to the axis and that exactly opposite it is farthest from the axis, while the other two have a length of radius between these two extremes and equal to one another. For imparting the four lateral movements to the cam cZ the cam 70 has four humps or rises, two of which give the lateral movements of d in one direction and the other two the lateral movements in the opposite direction.

As regards the cam d and its action upon the slides e and f, its shape is such that when the rod to has been pushed either out or pulled in and is at the extreme end of its stroke it gives it a pause or rest by not acting upon the cam-slide roller 6 or f, and at these periods of the cycle of movements the cam dis moved laterally by cam 70 out of contact with roller 6 or f into the intermediate position between them and also into the active positions in which it operates them. These pauses at these moments are provided to en able this shifting of the cam cZ into and out of its active positions to be performed smoothly and without jar. While these changings of positions are taking place-that is, when the cam d is being moved out of gear with the cam-rollersthe cam-slide e or f, as the case may be, is automatically locked, and it is held in this position as long as the cam is not engaged with it, while, on the other hand, when the cam goes into engagement with either of such cam-slides it simultaneously unlocks that slide. These lockings and unlockings are effected by two locking-pins Z, each of which is fixed on a plate Z, carried by a shank Z held or working in a sleeve Z the shank Z being normally pressed outward toward the cam-slides by a spring (shown in dotted lines) within the sleeve Z while, on the other hand, it is pressed in by the boss d of the cam cZ when that cam is moved into engagement with one or other of the camslides. In action when the boss cZ moves away from the plate Z of the locking device the locking-pin Z enters a hole in the camslide and looks that slide, and, vice versa, when the cam is pressed into engagement with one of the cam-slides its boss cZ comes in contact with a locking-pin plate Z and presses its pin Zfrom out of the hole in the slide and so unlocks the slide.

The shuttle illustrated in Figs. 4 and 5 (half only of which is shown in Fig. 4) con sists of a frame 0, having a spool 0 within it containing the weft-wire, which is paid out from the shuttle-spool over rollers 0 At each end of the shuttle there is a neck 0 into which the rods a pass when making engagement with the shuttle. Projecting into the interior of each of the necks 0 there is a catch 19, having an inclined end which is normally pressed up into the neck by a spring 19, and this catch engages with a notch a in the rod-nose when it enters the neck 0 The action is that as the coned nose of rod a euters the neck o the catch 19 is pressed back by it and when the notch a comes opposite p it is pressed by the spring 19 into the notch and so engages the rod a, and this being effected the shuttle is drawn across through the shed in the return action of the rod a.

The releasing of the rods a from the shuttle is effected by a trigger q and a stationary releasing projection r on the end of the bracket carrying the slide 1). The action be tween these parts is that when the rod a is approaching the inner end of its stroke, pulling with it the shuttle, the inclined nose of the trigger q comes in contact with the inclined face of the projection 'r and presses the trigger away from the rod a, drawing with it the catch 19 and taking it out of engagement with the rod-nose. After this the rod or continues moving backward until it is clear of the shuttle. lVhen the shuttle has been so released, it rests upon its bed g until the picking-rod from the other side engages with and carries it back again through the shed.

The warp-wires 0c are carried upon a suitable warp reel or roller 6 and pass overa roller t at the back of the loom, and the woven fabric is passed over a front roller u and wound on a taking-off roller 1; in the usual way.

What is claimed in respect of the hereindescribed invention is- 1. In a wire-weaving loom, for weaving wire fabric of warp and woof, a rod at either side of the loom, adapted to pass through the shed a shuttle adapted to be passed through the shed by said rods, alternately; a continuously-revolving cam for operating said two rods; intermediate operating-levers between said cam and the rods; and means for moving said cam into and out of engagement with the two rod-actuating mechanisms alternately, whereby one of said mechanisms is entirely at rest,wlien the other is in action; substantially as set forth.

2. In a wire -weaving loom for weaving wire fabrics of warp and woof, a rod at either side for moving the shuttle across the shed; a lever for operating each of said shuttle-rods; two sets of reciprocating slides connected with said shuttle-rod levers, by which such levers are. operated; and a continuously-revolving cam, means for moving said cam alternately into and out of engagement with said slides, and also out of engagement with either of them, and thereby to perform alternate active and idle revolutions, and so operate the rod, and also provide periods of rest for same; substantially as described.

3. In a wire-weaving loom, for weaving wire fabric of warp and woof, a slay and operatin g mechanism therefor, a shuttle adapted to be moved across the shed from either side, a rod at either side for moving said shuttle; a cam having a continuous rotative, and intermittent bodily lateral movement;

a rod or lever mechanism between the cam and the shuttle-rods connected with each of said rods, and adapted to be operated alternately by said cam; and means for moving said cam bodily into and out of engagement alternately with each of the shuttle-rod-actuating mechanisms, and also out of engagement with both, whereby an idle revolution between each bodily actuation is eifected,and pauses of the picking motion efiected, while the beating-up motion is actuated; substantially as described.

4:. In a wire-weaving loom, for weaving wire fabric of warp and woof, a shuttle, shuttle-rods at either side for operating said shuttle, a cam mechanism for operating said rods, comprising a continuously-rotating cam; two

'devices on either side of said cam, adapted to be alternately operated by said cam; and a separate cam with operating connections for giving said first-named cam bodily lateral movement, and moving it into and out of engagement with said two devices, alternately; substantially as and for the purposes described.

5. In a wire-weavingloom, the combination of shuttle and shuttle-rods, the cam d, camslides e and f, shaft t carrying said cam, the cam disposed and revolving in a plane at right angles to the plane of the cam. d, connections for driving both said cams from a moving part of the loom, and means for conmeeting the shaft 11 with cam cl whereby said shaft is reciprocated, said cams having different relative rates of movement; substantially as described.

6. In a wire-weaving loom, the combination of the cam d; two sets of cam-actuated devices, operated alternately by said cam, to and frp; and a locking device operating in connection with each of said cam-actuated parts, and adapted to be-disengaged from said parts, by the cam, by the lateral movement thereof, alternately, and means for impart- I ing tocam d its lateral movement; substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

h DANIEL S. BIERELL. WVitnesses:

SAMUEL TAYLOR, GEORGE SMITH.

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